The Role of Interventional Radiology Techniques in the Management of Renal Angiomyolipomas
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Purpose of Review
Although benign, renal angiomyolipoma (AML) may lead to serious complications without appropriate management. The purpose of this review is to describe the role of and evidence for interventional radiology techniques in the management of patients with AML.
For patients with renal masses and non-diagnostic imaging studies, image-guided percutaneous biopsy is found to be highly accurate and useful in directing patient management. Once the diagnosis of AML has been made based on either imaging or biopsy, arterial embolization of tumors that are symptomatic or >4 cm has been demonstrated to reduce the risk of hemorrhage as well as tumor size. Percutaneous ablation devices have been proposed as alternative strategies but remain investigational.
The utility of interventional radiology techniques including percutaneous core needle biopsy and prophylactic super-selective arterial embolization is safe and effective management strategies for patients presenting with AML tumors.
KeywordsAngiomyolipoma Interventional radiology Arterial embolization Radiofrequency ablation Microwave ablation
Compliance with Ethical Standards
Conflict of Interest
Ryan M. Kiefer declares no potential conflicts of interest.
S. William Stavropoulos reports personal fees from Bard and Cook and grants from Cook, B. Braun, and Sillajen.
Human and Animal Rights and Informed Consent
This article does not contain any studies with human or animal subjects performed by any of the authors.
Papers of particular interest, published recently, have been highlighted as: • Of importance •• Of major importance
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